Hi i have a 2000 5.3 silverado does anyone know the specs on this engine? Do we have roller rockers, if so what size. what is the size of the cam and lift. how many horsepower do this trucks have stock.

any info would be greatly appreciated

 

1.7 roller rockers, if memory serves right the stock 2000+ 5.3 cam is a split pattern around high 18x duration w/.48x lift on a 114lsa. Most 2000's I have seen dyno around 230-240hp stock.

 

we do not have roller rockers, we do have roller lifters, but the rockers are solid machined steel(?) roller rockers are available from jesel and a few other vendors.